By Jamie Smith
Even gorilla families have their hairy moments!
This male was not pleased when his son reached up and yanked a tuft of hair on the top of his head.
Cheeky Ubuntu crept up behind his dad Bantu, who was taking a moment to sit down and relax.
And instead of playing nicely, he pulled his hair, causing Bantu to grimace with pain and spin round to face the youngster.
The moment was capture on camera at Knoxville Zoo by Kelly Kearse, a high school chemistry teacher from Knoxville, Tennessee.
Kelly, 50, said: “Zoo Knoxville is blessed to have three young gorillas in its eight member colony. It is a wildly fun place to visit.”